Rail-joint for iron beds.



No. 849,537. PATENIED APB.. 9, 1907.

- W. L. FREDERICKS.

RAIL JOINT FUR IRON BEDS.

APPLICATION FILED 00T. 26. 1906.

APPLICATION FILED 00T. 26. 1906.

PATENTED APR. 9, 1907.

W. L. FREDERICKS. RAIL JOINT FR IRON BEDS.

2 SHBBTS-SHBBT 2.

UNiTnn sTaTTrs fiaaTnnT onirica.

VILLIAM L. FlFiDEPtlCKS, OF MINNEAPOLlS, MINNESOTA.

RAIL-JOINT FOR IRON BEDS.

` Speccatonof Letters Patent.

Patented April 9, 1907.

Application filed October Z6, 1906. Serial No. 340,761.

T0. @ZZ 10h/0m, it Wha/y concern:

-Be it ki'iown that I, WiLLiAM L. FREDER- .1CKs a citizen of the United States, residing act description of the invention, such as will enable others skilled in the art to which it appertains to inake and use the saine.

My invention has for its object to provide a siinp'lified and generally-improved bed-rail joint for,iron beds; and to this end it consists of the novel devices and combinations of devices hereinafter described, and defined in the claims.

The invention is illustrated in the accompanying drawings, wherein like characters Vindicate like parts throughout the several on the line .t2 of said Fig. 1 and the parts being shownon a larger scale. Fig. 3 is a view corresponding to Fig. 1, but with sonic parts sectioned .on the line :c3 m3 of Fig. 2.

Fig. 4 is a transverse vertical section taken on the liiieacL .r4 of Fig. 3. Fig. 5 is a view corresponding to Fig. 3, illustrating asliglitlymodified construction; and Fig. 6 is a transverse vertical section taken on the line 01; fr of Fig. 5.

The nuineral 1 indicates one of the cornerposts of the bed, the sanie being shown in the forni of a metallic pipe or tube. The socket ineniber of the improved coupling is `forined in a head or block portion 2, which., as shown and preferred, is rigidly secured 'to the leg l by being cast around the saine. This coupling heady or block 2 at its )rejecting end is formed with a )air of lateraliy-spaced jaws or rongs 3, Whic at their extremity are in turn forrred with inwardlyextended laterallyspaced cam-acting lock-ribs 4. The inner surfaces of the lock-ribs 4 incline downward in a direction toward the post 1. The vertical passage formed in the head or block 2 between the prongs 3 and inward of the lockribs 4 is formed with outwardly-divergiiig vertical Cain-surfaces''), with respect to which,

lto a transverse angle-bar S.

the inclined inner surfaces of the lock-ribs 4 diverge upward.

The side rails G of the bed'arc preferably formed of angle-iron,l and one flange thereof near each end of the rail is provided with lock projections 7, that project froin oppo- 'site Vsides thereof and adapted to engage with the inclined inner surfaces of the lockflanges 4 of the coupling-head These lock projections 7 are preferably formed hy passing a steel pin through a perforation inl the flange of the said rail and upsetting both ends thereof, so that it is rigidly secured in position. rlhe projection of the rail-flange beyond the lock pins or projections 7 is such that when the ends of said )in engage the inclined inner surfaces of tliel end portion of the rail-flange will be forced and tightly wedged against the diverging surfaces 5 of the said coupling-head.- The diverging surfaces serve to positively aline the vertical flange of the rail both in a vertical direction and in the direction of a radial line drawn from the center of the post 1 centrally between the lock-flanges et. 'lhe wedging action of the pin 7 and the end of the rail-flange in a vertical direction between the diverging vertical surfaces-5 and the iiiclined inner surfaces of the lock flanges 4 serves to rigidly secure the parts with the rail 6 extending in a right angle with respect to the' bed-post l--to wit, the said rail in a horizontal,position and the said corner-post in a. vertical position.

In the constructionillustrated in the Figs. 1 to 4, inclusive, the rail (i is rigidly secured By this arrangenient two rails (i and two transversel bars S may be rigidly secured together to form the frame of the bed-spring, so that the said rails (i then serve the double function of side rails to the bed and side rails to the frame of the bed-spring.

ln the construction illustrated in Figs. 5 and 6 the rail (i constitutes only a side rail to the bed, and to make thc same reversible one flange thereof is cut away at its ends at 6, so as to clear the lock-[langes 4 in both positions of the rail. ln Figs. 5 and the said rail is shown as secured with its horizontal flange in a lowered position and by dotted lines in Fig. 6 is shown as secured willi its horizontal flange in a raised position.

The device described is of very small cost,

ock-Hangcs 4 the roo but is lnevertheless strong, durable, easily operated, and generally ellicient for the pur poses had in View. I'

What I claim is-.

- l "lie'cornbina'tion with a hed-post,l of a 1 coupling-head secured thereto, and provided with laterally-spaced jaws 3 having coperating upWardly-diverging lock-flanges and outwardly-diverging clarnping-surfaces, and

a rail having on the opposite sides of its vertical flange lock projections that engage with i said lock-Hanges, and press the end of the- Hpling-head having jaws 3 formed with lateralluv-spaced lock-flanges 4 and outwardlyr diverging clamping-surfaces .5, the inner surfaces of which lf, 'ck'langes diverge up- War'd with respect to said clan'iping-surfaces 5, of a rail 6 provided near its end with a lock-pin 7 passed through' its vertical lange and upset, the ends of the said lock-pin 7 being engageable with the inner surfaces oh said lock-flanges 4 to press the innerl end of the vertical flange of said rail against the divergingclamping-surfaces 5, substantially as ,descrilied.

In tcst'iinonv whereof l allix intvl, signature in presence of two witnesses.

W'ILLIAM L. FREDERICKS. fitnesscs zv MAME HoEL, F. D.' MERCHANT. 

